Curling iron



FIG. 1 is a top plan view of a curling iron showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a front elevational view thereof; and

FIG. 6 is a rear elevational view thereof.

The electric cord member is fragmentarily illustrated in FIGS. 1-6 forease of illustration.

The ornamental design for a curling iron, as shown and described.